Charging device for furnaces.



l. HUNDLEY.

CHAHGING DEVICE FOB FURNACES. APPLlcATloN FILED ocT. 21, |916.

Pawnd sept. 24,1918.

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JAMES HUNDLEY, 0F MIDDLEPORT 031101.

CHARGING DEVICE FOR FUBNACES.

Specification of Letters Patent.

Batented Sept. 24,1918.

ApplicationA filed October-21, 1'916. Seria-1 No: 126,850.

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Be it known that l, JAMES' HUNunnr, a citizen of' the United States, and a resident of the city of Mid'dlepert, county of Meigs, and State of Ohio, have invented certain new and useful Improvements in Charging Devices lfor Furnaces, of which the following is a specification.

My invention relates to improvements in charging devices for heating furnaces, and more particularly to that type of furnace designed for heating and reducing iron or steel or similar refractory substances, and has more definite relation to that particular type of furnace as shown and designated in U. Patent #634,499, said patent being granted. on October 10, 1899, to the inventer hereof, and this invention is an improvement on aard amplification of said patent and covers developments thereof which have been found essential and vital as the result of the com# inercial operation of said device.

A particular obj ect of the present invention is to secure the pillows or bricks, as clesignated in said patent, against turning or swiveling on the charging pipes, and' to pre vent them falling off or being lifted off when loading, unloading or hea-ting the iron piles which rest thereon. A further particular object is to prevent the charging pipes or tubes from sagging within the furnace under the influence of the impinging heat or flame` and the weight or load of the piles imposed thereon. A further object is to protect said pipe supporting means from injury or destruction, due to excessive heating within` the furnace.

The general embodiment of my invention is illustrated in the accompanying drawings, although it should be distinctly understood that I do not desire to restrict myself to the precise embodiment herein stipulated, but claim such modifications as come legitimately within the spirit of this invention.

With vmore particular reference to the appended drawings, and to the drawings of' U. S. Patent #634,499, in which similar numerals refer to similar parts throughout, and in which the numerals of the former patent have, in so far as they relate to the present invention, been employed to designate corresponding parts of the present invention Figure l illustrates a vertical cross section of a conventional furnace with the charging device installed. Fig. 2 shows a cross sectional elevation cfa detail of the pipe supporting means, with a fragment of the pipe in piace, said elevation being taken en; line 2 2 of Fig- 3. `Figl 3 is a section-al. elevatio'n of the same detail taken. medially of Fig- 2. Fig. 4 is a cross sectionef a preferred form of pipe, havinga pillow or brick in place. Fig. 5 is an altcrnativeform of pipe, having side lugs or ribs instead of i11- dentures. Fig. 6 isy astill further altern-ative arrangement of the pipe in which the ribs are enlarged and chambeir'ed to providle for coolii'ig. Fig. 'T a further arrangement of pipe, having flattened sides instead of ribs or indentuu'es, and Fig; 8 shows a plain cross section of pipe with brick surrounding a major portion thereof to secure brick aga-inst being lifted ofi".

In' the drawings, the numeral 5 designates the walls of the furnace in general, having a charging door or opening t, and' any suitable bed or floor 6 of suitable refractory material, the open-ing 4 being closable by the door 7 controlled by lever 8` through link 9; l0 designates the piles! or blocks of iron to be heated which rest on the pillows or bricks 19 imposed onor attached to the hollow pipes or tubes M, which pass through the opening 4t at; the front of the furnace and any suitable openings l5 at the rear of the furnace. 13 designatesv the heating chamber which may be heated' by any suitable furnace, not shown. The pipes 14 are cooled by a flow of water or other element therethrough, said water being supplied through the hose 16V attached to upright pipe f8 and discharged through upright 18 and hose 16. Pipes 14 are supported on suitable rollers or other supports 2l maintained in standards 23 without the furnace, and Within the furnace are supported on rollers 20 maintained on standards 22. These standards are preferably embedded within the floor 6 to protect them from the furnace action. Rollers 20 revolve on tubular shafts 24 supported in standards 22, said shafts being supplied with a flow of water through pipes 31, said water discharging through pipes 32, shafts 24: heilig estopped medially of roller 20 by any suitable wall or estoppage 25. Roller or sheave 20 is hollow or chalnbered, as at 30-30, having a medial wall 28, said wall having suitable openings or passages 29 therethrough. Shafts 24 are provided with openings 26 on one side of the estoppage and 27 on the opposite side of said estoppage.

With more direct reference to construction of tubes 14 and pillows 19, the numeral 33 indicates longitudinal indentures or recesses, preferably diametrically opposed within the walls of said pipe, the pillow having a tongue or projection 34 to register with said indenture, the pipe being iattened, as shown at 35, at some suitable position to allow the placing of the bricks thereon. 36 indicates a rib or projection on said pipe to register with corresponding indentures in the pillow which may be utilized as an alternative to the previous construction, said rib being removed, as at 37, to allow the placing of the bricks. shown enlarged and chambered or hollowed, as at 39, to allow the water to cool said ribs, the ribs being discontinued at any suitable location, as at 40, to allow the placing of the pillows. In Fig. 7 the pipes are shown with attened sides 41 to prevent bricks from oscillating or swiveling, although this construction does not prevent their being lifted off with the piles. In Fig. 8 the pipes are used with neither indentures nor ribs, the bricks 19 surrounding a major portion of the pipes, which prevents their being lifted off, but does not prevent their swiveling, the pipes being flattened, as at 42, to allow the placing of the bricks.

In operation the iron or steel iles are placed on the bricks resting on t e pipes without the furnace, and pipes are then y moved forward over their supportingrollers to carry piles through the furnace door into the heating chamber, the iexible hose allowing such longitudinal movement. During the heating the pipes are cooled by the passage of water through the pipes and the inter'nal supporting rollers are cooled by forcing water through pipes 31 through the hollow shafts 24 from thence through openings 26 into chamber 30 through openings 29 into In 38 this rib is chamber 30 through openings 27 and out through pipe 32, thus maintaining a uniform tem erature of suitable degree within the sha ts and rollers during the process of heating. Anv required number of pillows or bricks may be placed on the pipes, of which any suitable. number may be employed, the bricks being placed upon the pipes at the special point provided, and moved longitudinally thereon to the required point of loading. The special provisions designated prevent the pillows from swiveling or falling ofi', maintain the loads in an upright position and prevent the pillows from being lifted off the pipes with the piles after heating.

I claim as new and desire to protect by these Letters Patent, is:

In a heating chamber of a heating furnace intended for heating piles, the combination of hollow bars for supporting said piles within said chamber, bricks or pillows supported on said hollow bars between said bars and said piles, longitudinal ribs integrally formed upon the exterior circumference of said bars, indentures formed within said bricks or piles to co-act with said longitudinal ribs to prevent rotation of said bricks upon said bars, said longitudinal ribs being eliminated for a portion of the length of said bars to facilitate the placing of said bricks upon said bars, as and for the purposedescribed.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES HUNDLE Y.

Witnesses CLIDE HAcKm'r, CHAs. HUGHES.

Copies of this patent may be obtained for ive cents each, by addressing theWommInioner of Patent Washington, 2D. 0." Y

Having thus described my invention, what 

